List of counties in Montana

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This is the list of the 56 counties in the US state of Montana . Montana has two city counties that combine county and city governments: Anaconda with Deer Lodge County and Butte with Silver Bow County . The portion of Yellowstone National Park that is in Montana was not assigned to a county until 1997. That year the part was formally assigned to Gallatin Counties and Park Counties .

The official abbreviation of Montana is MT , the FIPS state code is 30 .

Counties

The Federal Information Processing Standard (FIPS) code is given for each county. The link leads to the corresponding data from the US Census Bureau . The origin indicates from which or which counties a new one was created.

county	FIPS code	County Seat	Founded	origin	Origin of name	population	surface	map
Beaverhead County	001	Dillon	1864	Original county	Beaverhead County is named for Beaverhead Rock in the Jefferson River , which looks like the head of a beaver	9,202	14,356 km² ( 5,543 sq mi)
Big Horn County	003	Hardin	1913	Rosebud County , Yellowstone County	Bighorn Sheep , English Bighorn sheep	12,671	12,937 km² ( 4,995 sq mi)
Blaine County	005	Chinook	1895	Chouteau County	James G. Blaine , US Secretary of State and Presidential Candidate	7.009	10,945 km² ( 4,226 sq mi)
Broadwater County	007	Townsend	1897	Jefferson County , Meagher County	Charles A. Broadwater , Army Engineer and Officer.	4,385	3,087 km² ( 1,192 sq mi)
Carbon County	009	Red Lodge	1895	Park County , Yellowstone County	According to the coal deposits in the area	9,552	5,304 km² ( 2,048 sq mi)
Carter County	011	Ekalaka	1917	Fallon County	Thomas Henry Carter , a Senator from Montana.	1,360	8,651 km² ( 3,340 sq mi)
Cascade County	013	Great Falls	1887	Chouteau County , Meagher County	After the cascades of the Great Falls of the Missouri River	80.357	6,988 km² ( 2,698 sq mi)
Chouteau County	015	Fort Benton	1865	Original County	Chouteau County was to Chouteau Jean Pierre and his son Pierre Chouteau, Jr. named. They were fur traders.	5,970	10,290 km² ( 3,973 sq mi)
Custer County	017	Miles City	1865	Big Horn County	George Armstrong Custer , United States Army officer	11,696	9,798 km² ( 3,783 sq mi)
Daniels County	019	Scobey	1920	Sheridan County , Valley County	Mansfield A. Daniels , an early rancher and shop owner	2.017	3,693 km² ( 1,426 sq mi)
Dawson County	021	Glendive	1865	Unmanaged land	Andrew Dawson , a trapper and officer	9,059	6,146 km² ( 2,373 sq mi)
Deer Lodge County	023	Anaconda	1864	Original county	Deer Lodge Valley , which itself takes its name from the Indian "Lodge of the White-tailed Deer" ( house of the white-tailed deer ), or from a salt lick with herds of deer	9,417	1,909 km² ( 737 sq mi)
Fallon County	025	Baker	1913	Custer County	Benjamin O'Fallon , an agent	2,837	4,196 km² ( 1,620 sq mi)
Fergus County	027	Lewistown	1885	Original county	Andrew Fergus father, one of the first settlers	11,893	11,238 km² ( 4,339 sq mi)
Flathead County	029	Kalispell	1893	Missoula County	Flathead Indians	74,471	13,206 km² ( 5,099 sq mi)
Gallatin County	031	Bozeman	1864	Original county	Albert Gallatin , American Minister	67,831	6,493 km² ( 2,507 sq mi)
Garfield County	033	Jordan	1919	Dawson County	Presumably James A. Garfield , 20th US President	1,279	12,090 km² ( 4,668 sq mi)
Glacier County	035	Cut bench	1919	Teton County	Glacier National Park	13,247	7,757 km² ( 2,995 sq mi)
Golden Valley County	037	Ryegate	1920	Musselshell County , Sweet Grass County	Presumably so named to attract settlers to the area	1,042	3,043 km² ( 1,175 sq mi)
Granite County	039	Philipsburg	1893	Deer Lodge County , Missoula County	Granite Peak , the highest point in Montana that also featured a silver mine	2,830	4,475 km² ( 1,728 sq mi)
Hill County	041	Havre	1912	Chouteau County	James J. Hill , a railroad contractor	16,673	7,501 km² ( 2,896 sq mi)
Jefferson County	043	Boulder	1864	Original County	Thomas Jefferson	10,049	4,292 km² ( 1,657 sq mi)
Judith Basin County	045	Stanford	1920	Cascade County , Fergus County	Judith River , who in turn was named by William Clark after Julia "Judith" Hancock, his future wife	2,329	4,843 km² ( 1,870 sq mi)
Lake County	047	Polson	1923	Flathead County , Missoula County	Flathead Lake	26,507	3,869 km² ( 1,494 sq mi)
Lewis and Clark County	049	Helena	1864	Original County	Meriwether Lewis and William Clark	55,716	8,964 km² ( 3,461 sq mi)
Liberty County	051	Chester	1920	Chouteau County , Hill County	Freedom , as an expression of the feelings of the builders after the First World War	2.158	3,704 km² ( 1,430 sq mi)
Lincoln County	053	Libby	1909	Flathead County	Probably Abraham Lincoln	18,837	9,358 km² ( 3,613 sq mi)
Madison County	055	Virginia City	1864	Original county	James Madison	6,851	9,290 km² ( 3,587 sq mi)
McCone County	057	Circle	1919	Dawson County , Richland County	Senator George McCone	1,977	6,845 km² ( 2,643 sq mi)
Meagher County	059	White Sulfur Springs	1867	Chouteau County , Gallatin County	Thomas Francis Meagher , Governor	1.932	6,195 km² ( 2,392 sq mi)
Mineral County	061	Superior	1914	Missoula County	Lots of mines	3,884	3,160 km² ( 1,220 sq mi)
Missoula County	063	Missoula	1864	Original County	Possibly from the language of the Flathead Indians im-i-sul-e-etiku , which means "near a place of fear or ambush". A reference to Hell Gate Canyon , where the Flathead were sometimes attacked by Blackfeet .	95,802	6,729 km² ( 2,598 sq mi)
Musselshell County	065	Roundup	1911	Fergus County , Meagher County , Yellowstone County	Musselshell River where many mussels have been found	4,497	4,836 km² ( 1,867 sq mi)
Park County	067	Livingston	1887	Gallatin County	Yellowstone National Park	15,694	6,879 km² ( 2,656 sq mi)
Petroleum County	069	Winnett	1926	Fergus County	The production of petroleum (English petroleum ) in Cat Creek	493	4,284 km² ( 1,654 sq mi)
Phillips County	071	Malta	1915	Blaine County , Valley County	BD Phillips , a local farmer	4,601	13,313 km² ( 5,140 sq mi)
Pondera County	073	Conrad	1919	Chouteau County , Teton County	Originally from pend d'oreille , (French for ear charms ), later rewritten a little to avoid confusion with names that sound similar	6,424	4,209 km² ( 1,625 sq mi)
Powder River County	075	Broadus	1919	Custer County	Powder River , which gets its name from gunpowder-like sand	1,858	8,539 km² ( 3,297 sq mi)
Powell County	077	Deer Lodge	1901	Deer Lodge County	Mount Powell , after John Wesley Powell	7.180	6,024 km² ( 2,326 sq mi)
Prairie County	079	Terry	1915	Dawson County , Fallon County	The location in the Great Plains	1,199	4,499 km² ( 1,737 sq mi)
Ravalli County	081	Hamilton	1893	Missoula County	Anthony Ravalli , a missionary	36,070	6,200 km² ( 2,394 sq mi)
Richland County	083	Sidney	1914	Dawson County	Try to attract settlers	9,667	5,398 km² ( 2,084 sq mi)
Roosevelt County	085	Wolf Point	1919	Sheridan County	Theodore Roosevelt	10,620	6,102 km² ( 2,356 sq mi)
Rosebud County	087	Forsyth	1901	Custer County	Rosebud River , after the wild roses on its bank	9,383	12,981 km² ( 5,012 sq mi)
Sanders County	089	Thompson Falls	1906	Missoula County	Wilbur Fiske Sanders , pioneer and senator	10,227	7,154 km² ( 2,762 sq mi)
Sheridan County	091	Plentywood	1913	Valley County	Officer Philip Sheridan	4,105	4,343 km² ( 1,677 sq mi)
Silver Bow County	093	Butte	1881	Deer Lodge County	Silver Bow Creek , whose name origin is unclear	34,606	1,860 km² ( 718 sq mi)
Stillwater County	095	Columbus	1913	Carbon County , Sweet Grass County , Yellowstone County	Stillwater River , the very slow river	8,195	4,649 km² ( 1,795 sq mi)
Sweet Grass County	097	Big Timber	1895	Meagher County , Park County , Yellowstone County	Fragrant Mariengras , engl. sweet grass	3,609	4,804 km² ( 1,855 sq mi)
Teton County	099	Choteau	1893	Chouteau County	Teton Range , from the French teton , beast.	6,445	5,887 km² ( 2,273 sq mi)
Toole County	101	Shelby	1914	Hill County , Teton County	Joseph Toole , first governor of Montana	5,267	4,949 km² ( 1,911 sq mi)
Treasure County	103	Hysham	1919	Rosebud County	As an advertisement to attract new settlers	861	2,536 km² ( 979 sq mi)
Valley County	105	Glasgow	1893	Dawson County	A significant part of the county lies on the Milk River	7,675	12,745 km² ( 4,921 sq mi)
Wheatland County	107	Harlowton	1917	Meagher County , Sweet Grass County	Because of the many wheat fields (Engl. Wheat )	2,259	3,686 km² ( 1,423 sq mi)
Wibaux County	109	Wibaux	1914	Dawson County , Fallon County , Richland County	Pierre Wibaux , pioneer and rancher	1,068	2,302 km² ( 889 sq mi)
Yellowstone County	111	Billings	1893	Custer County	Yellowstone River , whose name comes from the yellow rocks found there	129,352	6,825 km² ( 2,635 sq mi)

Repealed County

• Yellowstone National Park (1872-1997)

Individual evidence

1. ↑ EPA County FIPS Code Listing . In: EPA.gov . Retrieved February 23, 2008.
2. ^ ^{A b} National Association of Counties: NACo - Find a county . Archived from the original on April 21, 2005. Retrieved April 26, 2007.